Spring-manipulating tool.



-W. J. PARSONS,

SPRING MANIPULATINGIOOL. APPLICATION FILED MAR. 27. 1917' 1,235,237. IPatented July 31, 1917.-

/ N VENTDR.

UNITED STATES PATENT; orator WILLIAM J. PARSONS, OE-MONTAGUE,MASSACHUSETTS, ASSIGNORIO MILLERS FALLS COMPANY, OF MILLEBS-EALLS,MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

S'PRING-MANIPULATING TOOL.

Application.-filed--March-27, 19:17.

To all whom it may concern:

Be it known that I, WILLIAM J. PARSONS,

a citizen of the 'United States, residingat- Montague, in the county ofFranklin andmanipulating such. springs such manner as to render themtemporarily inoperative and permit the removal of the valves when itbecomes necessary to grind the same.

The invention is embodied in the improvements which I will now proceedto describe and claim. I

Of the accompanying drawings forming a part of this specification;-

Figure 1 is a side view of a tool embodying the invention, adapted toengage one end of a spring and lift the same from an abutment.

Fig. 1 is a fragmentary view illustrating the operation of the tool whenthe same is adapted for operation as shown by Fig. 1.

Fig. 2 is an edge view of the tool.

Fig. 3 is a view similar to Fig. 1, showing the tool adapted to engageopposite end portions of a spring to longitudinally compress the same.

Fig. 4 is an edge view of the part hereinafter called the guide.

Fig. 5 is an edge view of the part hereinafter called the holder.

The same reference characters indicate the same parts in all thefigures.

In the drawings, 12, 12 designate a pair of elongated stifl' metal arms,each of which is provided at its outer end with a jaw 13 formed toengage a spring 14, said jaws being preferably formed by flattening andbifurcating the outer ends of the arms, as shown by Fig. 2. As shown byFig. 1 one of the jaws may engage a fixed abutment 15, while the otherjaw engages an end convolution of the spring, so that when the jaws aremoved apart the engaged end of the spring is lifted relatively to theabutment 15.

As shown by Fig. 3, the jaws may be engaged with the convolutions atopposite end portions of the spring, s that wh n the Specification ofLetters Patent.

Patented July 31', 1917.

Serial No. 157,788.

jaws. aremoved toward each other, the spring; will be longitudinallycompressed with.itsamajorportion between the-jaws.

Each armis provided with two faces 16 and 17, sa-id faces being parallelwitheach other and inclined relatively to the jaw 13.

The inner ends of the arms 12 are connected by pivots lS with opposite.ends of a holder which is preferably ofsectional construction forthepurpose hereinafterdescribed, the holder including a central sec-- tion19 having oppositely projecting pivot studs.v 20 and end sections 21,socketed to receive and turn on the studs 20, the end sections beingtherefore swiveled to the central section. The end sections 20 areprovided with slots 21 receiving the inner ends of the arms 12, thearrangement being such that the said arms swing in thesame plane and aremovable simultaneously in opposite directions.

22 designates a guide, which is preferably an elongated bar having slots23 through which the arms 12 pass loosely, each slot being provided withan outer guide member 24 and an inner guide member 25, said membersbeing preferably circular studs extending across the slots 23. The outermembers 24 are removable to permit the arms to be inserted in andremoved from said slots, each member 24 having a threaded portionengaging a tapped socket in the guide 22, and a head 26, whereby it maybe rotated.

I have provided manually operable means whereby the said holder andguide may be moved relatively to each other to vary the distance betweenthem, said means being preferably embodied in an operating screw 27engaged with a tapped socket 28 in the holder, and having an unthreadedportion 27 journaled in the guide. The rotation of the screw 27 causesrelative movements of the holder and guide, as indicated in full anddotted lines in Fig. 1.

When the tool is adapted for use, as shown by Figs. 1 and 1 the inclinedfaces 16 of the arms bear on the inner guide members 25 and areseparated from the outer guide members 24, so that when the distancebetween the holder. and guide is increased, the inclined faces 16 andguide members 25 cooperate in swinging the arms simultaneo sly outwardor away fr m each other,

as indicated by dotted lines, thus causing the arms to lift one end ofthe spring 14, as indicated by Fig. 1*.

To adapt the tool for use as shown by Fig. 3, the outer guide members 2eare removed, the arms 12 are swung outwardly from the slots 2-3, and theend sections 21 of the holder are given a'lialf rotation, after whichthe arms are again swung into the slots :23, their inclined faces 16then facing outwardly and being adapted to bear on and cooperate withthe outer guide members 2i. lVhen the holder and guide are relativelymoved to increase the distance between them, the jaws 13 are movedsimultaneously inward, or toward each other, and caused to compress thespring 1% from both ends,

I claim:

A spring-manipulating tool comprising a pair of elongated arms havingaws at their outer ends formed to engage spring convolutions and innerand outer faces which are inclined relatively to said jaws, a holder towhich the inner ends of the arms are pivoted to swing in the same plane,said holder including a central section and end sections pivoted to saidarms and swiveled to the central section to permit a rotative adjustmentof the arms, a guide having a pair of outer guiding members arranged tocooperate with two of the inclined faces on the arms in swinging thearms inwardly, and a pair of inner guiding members arranged to cooperatewith the other inclined faces on the arms in swinging the armsoutwardly, and manually operable means for moving said holder and guiderelatively to each other to cause the cooperation of said guide andinclined faces.

In testimony whereof I have ailiXed my signature.

XVILLIAM J. PARSONS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

